Program in Cellular and Molecular Biology, University of Miami School of Medicine, Miami, Florida 33136.
Plant Physiol. 1968 Jul;43(7):1069-74. doi: 10.1104/pp.43.7.1069.
Indole-3-acetic acid stimulates ethylene production in the nodal region of pea stems, and the gas inhibits bud growth. At all concentrations of IAA there is a close correlation between the intensity and duration of ethylene production and the bud inhibition which results. Kinetin reverses the inhibitory actions of ethylene and IAA on bud growth. It is concluded that auxins suppress bud development by stimulating ethylene formation. The possibility that auxin induced ethylene formation controls apical dominance is considered.
吲哚乙酸(IAA)能刺激豌豆茎节间区域乙烯的生成,而这种气体又能抑制芽的生长。在 IAA 的所有浓度下,乙烯生成的强度和持续时间与由此产生的芽抑制之间都存在密切的相关性。激动素(kinetin)逆转了乙烯和 IAA 对芽生长的抑制作用。由此可以得出结论,生长素通过刺激乙烯的形成来抑制芽的发育。人们考虑了生长素诱导乙烯形成控制顶端优势的可能性。